TR250-145U Tyco Electronics, TR250-145U Datasheet - Page 22
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TR250-145U
Manufacturer Part Number
TR250-145U
Description
POLYSWITCH 0.145A HOLD UNENCAPS
Manufacturer
Tyco Electronics
Series
PolySwitch®r
Datasheet
1.TR250-145.pdf
(28 pages)
Specifications of TR250-145U
R Min/max
3.500 ~ 6.500 Ohm
Voltage - Max
60V
Time To Trip
2s
Current - Hold (ih) (max)
145mA
Current - Trip (it)
290mA
Current - Max
3A
Package / Case
Radial
Holding Current
0.145A
Tripping Current
0.29A
Initial Resistance Max
6.5ohm
Initial Resistance Min
3.5ohm
Resistance R1
12ohm
Peak Reflow Compatible (260 C)
No
Fuse Terminals
Radial Leaded
Thermistor Type
PTC
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
TR145U
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
TR250-145U
Manufacturer:
Raychem
Quantity:
190
Company:
Part Number:
TR250-145US
Manufacturer:
MOLEX
Quantity:
32 648
4
Solder Reflow
• Recommended reflow methods:
• Surface-mount devices are not
• Recommended maximum paste
• Devices can be cleaned using
Rework
• If a device is removed from the
• If reflow temperatures exceed recommended profile, devices may not meet the performance requirements.
• Leaded devices are not designed to be compatible with reflow manufacturing operations.
• Recommended solder/temperature exposure for leaded devices is designated in the environmental/
322
Solder Reflow and Rework Recommendations for Telecommunications and Surface-Mount Devices
IR, vapor phase oven, hot air
oven.
designed to be wave soldered to
the bottom side of the board
(with the exception of
miniSMDC014).
thickness of 0.25mm (0.010 in).
standard industry methods and
solvents.
board, it should be discarded
and replaced with a new device.
physical tables for the product family. Exposure to temperatures or duration at temperature in excess of
these values may lead to device not meeting performance requirements.
PolySwitch Telecommunications and Networking Resettable Devices
CAUTION:
300
250
200
100
150
50
0
Preheating
30 to 90
Figure T21
Soldering
10 to 20
Time(s)
Cooling
120
Raychem Circuit Protection